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Device Driver Installation Interface Mapping

Publishing Venue

IBM

Abstract

Presented is a method that allows different versions of a device drive to control different instances of the same device type in a given system. It introduces the concept of a debug device driver controlling one instance of a device type while other instances of the device type are controlled by a standard version of the device driver.

Country

Undisclosed

Language

English (United States)

This text was extracted from a PDF file.

This is the abbreviated version, containing approximately
60% of the total text.

Page 1 of 2

Device Driver Installation Interface Mapping

Having different device driver versions for the same adapter type gives an operating
system tremendous flexibility in handling the communications with I/O devices.

For example:
6 instances of an I/O adapter are installed in a Unix* Operating System and all devices
are configured

- Idea: Allow the user to keep the same device driver package on all instances
except for one.

Steps:

-Unconfigure all devices
-Using the installation tool allow the user to specify which device will be
running the unique device driver (debug driver)

-Install the standard device driver (currently in the system) on 5 devices
-Install the unique device driver on 1 of the devices

-The Unix Operating System will create it's own packaging rules
files and installation packages to perform the install of the device drivers.

-After the installation has taken place, a user will be able to determine
which device is running the unique device driver.

- For example, using the view the output from the list devices
command on a Unix Operating System, the user will be able to see an indicator

for devices running a unique device driver. Example the indicator
could be attached to the device name.

As a result, a user could have many I/O devices in his system, but only one interface is
running a new device driver package. He will be able to continue following the above
described installation process, and if needed, every instance of the same device could
be running...